| details |
Early Ordovician |
Middle Ordovician |
USSR(Pre-Baltic) |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Bagdasaryan,L.L. Micropalaeo-phytological analysis of Cambrian and Ordovician Petroleums of the Baltic Region. |
1965 |
| details |
Early Ordovician |
Middle Ordovician |
USSR(Pre-Baltic) |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Ordovician |
Silurian |
Poland |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Early Ordovician |
|
Poland |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Ordovician |
|
USSR(Estonian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Silurian |
|
USSR(Pre-Baltic) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Nd |
|
USSR(Ukrainian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Nd |
|
USSR(Moldavian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Ordovician |
|
USSR(Moldavian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Early Gothlandian |
|
USSR(Moldavian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Gothlandian |
|
USSR(Moldavian SSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Ordovician |
|
USSR(Krasnoyarsk Kray) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Nd |
|
USSR(Nenets Nat.Okrug) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Nd |
|
USSR(Komi ASSR) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Cambrian |
|
USSR(Irkutskaya Oblast) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Nd |
|
USSR(Siberia) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |